Institutions and structures that function and regulate the confiscation,
production, distribution, exchange and consumption of goods and
services for meeting the needs, wants and desires of the members of a
society.

Functions and structures that have anything and everything to do with governance of a social system. Governance in regard to power, authority, position and decision-making, etc. within and between human groups on many and meta levels.

Political Economies

Many social scientists argue that economic and political institutions are so intertwined, systemically connected, that
to view them as separate entities is unrealistic.

What are the structures and dynamics by which Steven Sweet claims sports is a social institution?

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Dominant Culture (Conflict/Contradiction view)

A
system of beliefs, values, norms, laws and practices that reinforce the interests of those with the majority of Privilege. The dominant culture functions in the best interests of a few referred to as the social majority, whereas the term social minority is the term used to describe those who share lesser degrees of privilege.

A dominant culture often generates and maintains certain ideologies that include stereotypes and prejudices which often provoke discrimination-against the "other."